For Ultra Power Saving mode for about 12 minutes of resistance to this Mode if the battery remains 10% will be able to turn on work continuously 24 hours a day, but it is more likely to mean standby waiting to receive calls or use just a little only.
Endure for the Ultra Power Saving Mode, this mode if the battery remaining 10% can be used for further open up to 24 hours, but it would mean a standby Standby. Or use just a bit more.
For a tough stand mode of Ultra Power Saving Mode. In case the battery remaining 10% can open เครื่องใช้งาน has continued to 24 hours. But it could mean a standby standby. Used or just a little.